Nut-lock.



PATENTED FEB. 21, 1905. J. G. DENT, J. DENT, SR- & J. DENT, JR.

NUT LOCK.

.APPLIOATION FILED JUNE 30,1904.

flifliturs '25 z No. 782,900. Patented. February 21, 1905. I

UNITED STATES PATENT OEEIcE.

JOHN C. DENT, JOSEPH DENT, SR, AND JOSEPH DENT, JR, OF BOTHVV'ELL,CANADA, ASSIGNORS OF TIVO-FIFTHS TO JOHN DENT, OF MERLIN, ONTARIO,CANADA, AND WILLIAM J. MOEFAT, OF TILBURY, ONTARIO, CANADA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 782,900, dated February21, 1905,

Application filed June 30, 1904. Serial No. 214,706.

To whom it y 0077/0677? view, partly in longitudinal section, showing Beit knownthat we, JOHN C. DENT, JOSEPH the meeting ends of the sectionsof the lock- DENT, Sr., and JOSEPH DENT, J r., citizens of ing-bardetached. 5

the Dominion of Canada, residing at Bothwell, Referring to thecharacters of reference, 1

in the county of Kent, Province of Ontario, designates theservice-rails, and 2 the fish- Canada, have invented certain new anduseplates which are used to unite said rails at the ful Improvements inN ut-Locks; and we do joint. Passing through the fish-plates and declarethe following to be a full, clear, and the web of the rails are theordinary bolts 3. exact description of the invention, such as willScrewing onto said bolts are the nuts 4. For

Io enable others skilled in the art to which it apthe purpose ofpreventing said nuts from pertains to make and use the same, referenceturning on the bolts after they have been set being had to theaccompanying drawings, there is employed a locking-barmade in two and tothe figures of reference marked theresections 5 and 6, joined at thecenter. To on, which form a part of this specification. connect themeeting ends of said bar, section 5 This invention relates to nut-locks,and par- 5 is provided in the inner end thereof with a ticularly to thelocking of nuts of the bolts mortise7. Formedin the opposite wallsofsaidthat pass through the fish-plates which unite mortise are the inclinedways 8, which extend the ends of railway-rails; and it consists in thedownwardly and terminate in a straight lower construction andarrangement of parts hereinportion 9, as shown in Fig. 2. Projectingfrom 20 after fully set forth, and pointed out particuthe inner end ofthe section 6 of the locking-bar larl y in the claims. is a tenon 1(),having pins 11 extending laterally The object of the invention is toprovide therefrom, the opposite ends of which are simple and efiicientmeans applicable to nuts adapted to engage in the opposedinclined waysin common use upon railway-bolts whereby 8 as the tenon is placed insaid mortise from the 2 5 said nuts may be prevented from turning bytop. As the parts are forced together the pins reason of the jar andvibration incident to the travel down the inclined ways and draw thepassage of a train along the track, the arends of the sections of thebar together until rangement being such as to enable the locking thestraight portion 9 of said ways is encoundevice to be readily placedupon the nuts and tered, which the ends of the pins enter and 3 quicklyand easily removed. lock the sections of the bar against longitudi- Theabove object is attained by the strucnal separation. Upon the top of thetenon is ture illustrated in the accompanying drawings, a cap 12, whichcloses the mortise-opening.

in which- In the under edge of the sections of the lock- Figure 1 is aperspective view of the joined ing-bar are the notches or apertures 13,spaced 35 ends of two railway-rails, showing the appli to correspondwith the nuts 4 on the transcation of our invention. Fig. 2 is a frag-Verse bolts which unite the rails. Said notches mentary view inperspective of the joined are formed with an outer vertical face, an upends of the locking-bar, showing the manner per horizontal face adaptedto engage the sides 8 5 in which the sections of the bar may be drawn ofthe nuts, and with an inclined inner face 4 together and held againstlongitudinal separa- 1A, which allows of a longitudinal movement tion.Fig. 3 is a view'in elevation showing of the sections of the bar inadjusting them the members of the locking-bar separated. upon the nuts.At the outer ends of the sec- Fig. 4 is a transverse section as on line4 4 of tions of the locking bar are'the engaging Fig. 1. Fig. 5 is afragmentary view in dehooks 15, which enter recesses in the ends of 45tail showing the manner in which the hook at the fish-plate and lock thesections of said bar the end of the locking-bar engages in a recess fromlateral displacement. In placing this of the fish-plate. Fig. 6 is afragmentary locking-bar upon the nuts the hooks at the ends are engagedin the recesses in the fish-plate and the tenon of one section insertedfrom the top in the mortise of the other section and said parts forcedone into the other,which operation draws them together longitudinally,causing the hooks to engage firmly in the recesses of the fish-plate andthe notches to engage the nuts in a manner to prevent them from turning,as shown in Fig. 1. To remove the locking-bar, the meeting ends ofthesections thereof aredisengaged by raising the inner end of section 6until the ends of the pin engage the inclined slot, When a furtherupward movement of said section will cause a longitudinal separation ofthe sections as the tenon is Withdrawn from the mortise, therebyrelieving the hooks at the ends of said sections and enabling them to beremoved.

Having thus fully set forth our invention, What We claim as new, anddesire to secure by Letters Patent, is

1. In a nut-lock, the combination With the bolts and nuts, of a two-partlocking-bar having open notches in its under edge to engage said nuts,the meeting ends of the parts of said bar having engaging interlockingmembers for detachably locking said parts together.

2. In a nut-lock, the combination with the bolts and nuts, oi' thetwo-part locking-bar having open inclined notches to engage the nuts,each of said parts having a member at the end adapted to engage thefish-plate and said parts having integral interlocking members at themeeting ends for detachably uniting them.

3. In a nut-lock, the combination With the bolts and nuts, of thetwo-part locking-bar, each part having a hook at the end adapted toengage the fish-plate, there being in one part a mortise and upon theother part a tenon adapted to enter said mortise, there being in theWall of the mortise an inclined Way and a pin in the tenon adapted toengage in said Way, the under side of said locking-bar having notchesadapted to engage over the nuts.

In testimony whereof We sign this specification in the presence of twoWitnesses.

JOHN C. DENT. JOSEPH DENT, SR. JOSEPH DENT, JR.

Witnesses:

FRANK MOORE, FRANK Porn.

